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Blank Screen and Power Loss?- Culprit Identified- Now I need a new mobo!! Looking for suggestions..

R

ripthesystem

Senior member
System in question:

Tbird 900MHz
MSI K7T Pro2 (Ver.1)
onboard audio
256mb memory PC100
Matrox G400 AGP video
Maxtor 10gb 7200rpm HD
24/10/40 cd-rw
40x cd-rom
pci 10/100 nic
floppy
Inside Inwin mid-tower case (235W PSU)

This is my parents computer and has been running fine for over a year now and suits their needs well. This morning my mom turns it on and as it's loading up XP the monitor suddenly seems to go into standby(Green light turns orange) end of story. Hard shut down and then turn it back on and the monitor never clicks back to green. Subsequent reboots will let me into BIOS for about 15-20 seconds before the same thing happens.

I've checked and all the fans are running and according to BIOS the temps are WAY low. I switched the AGP video card to a 8mb Matrox PCI and tried a different monitor. Same story.. switched RAM to a different slot and put in a working 300W PSU and it STILL HAPPENS!!

Any ideas?? She really needs this computer as finals are fast approaching.
ALL HELP APPRECIATED!!!
Thanks
ripthesystem
 
I had stuff like that happen when my old ABIT BE6-II 2.0 had capacitors leaking and going bad. The big tube ones around the CPU and PSU header. Might be something to look for. I believe a part of my problem was having too many items connected to an el-cheapo 300 watt ATX supply and no power cleaning (APC Backups in-line or something like that) for 2 years.
 
Thanks for the quick replies!

I've done everything i can think of and though the board doesn't show any physical signs of death it seems all directions point that way. Guess I'll start looking for a new MOBO for them.

thx again
ripthesystem
 
You sure its the PC and not the monitor? Hard to say its the PC when the monitor stays off, too. 😉
 
I had a MSI KT7Pro2 that had no video signal after a weird power surge noise. Not sure, but I think it was the socket that died.

I sent it to ZZZZZZ to see if he could figure it out. Maybe MSI used those cheap aluminum-paste voltage regulators that are known to be defective. Been watching a story develop on TheRegister about Tiawan motherboard makers possibly facing a massive recall of motherboards over it.
 
Change the power supply and try a different one. I thought it was my mobo but I switched the psu and it fixed the problem. Good luck.
 
Originally posted by: BeeVo
Change the power supply and try a different one. I thought it was my mobo but I switched the psu and it fixed the problem. Good luck.
Click to expand...

Switched the PSU and the memory.. grrrr
 
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